Front casters wobble on my wb

My walk behinds front wheel started to wobble alot when going fast on pavement. It started this kinda suddenly. Do any of you know why this happens? Maybe it is just getting broken in. My old wb wheels do the same but the casters are both bent. Thanks

Linky,
Ever pushed a shopping cart real fast? Kind of the same on your
mower huh? Early Exmark Lazers did the same death wobble on hard
surfaces. Exmark redesigned front casters,they put tapered roller
bearings and a self locking nut so you can put some preload on
casters to stop the wobble. I think your gonna have to live w/
the wobble on your mower. Most walk-behinds don't have any way
to preload the caster bearings. ED

Did you say that it is just 1 wheel wobbling? If it is I would bet that you have a wheel that is not as close to the ground as the other 3. Check your clearances. Try shimming that one down a little.You might find that loosening everything on the carriage then tighten everything back up may fix it.

Don't even worry about it. If it's just a swivel-like wobble, this is practically normal. My walk behind did this from about the time it was new, and probably still does. I'm sure your bushings are probably fine, and I wouldn't worry about any shimming because it's not far enough of to effect any cutting performance. As a matter of fact, I bet it works just fine in turf, doesn't it? Just keep them greased and you are as good as gold.

Joe

Thank you, Dad - for always being the dad that you were. You truly are my hero. You always were.

Runner's right, when you run fast over concrete or hard turf the front wheels will wobble even on a newer machine. Doesn't necessarily mean the bushings nead to be fixed.
Linky, in case you didn't see it thanks for the reply on height adjuster rods on floater. Loosened them & works fine now.

Check your tire pressures. If this came on suddenly I'd bet you have a soft tire on the opposite side in the rear. Doesn't have to be very soft to make the front caster light enough to dance when you're on hard surfaces. If doesn't bother on turf because the grass is resilient enough to keep some pressure on the tire